It was Crick and Watson who worked out the structure of DNA in the 1950s, but its discovery was made nearly 100 years previously by a Swiss physician called Frederick Miescher.
The residents will range in nationality, cultural, religion, age, sex, political association, socio-economic backgrounds, etc. The Assisted Living Federation of America reports that the average age of an assisted living resident is 86.9 years (female average age 87.3; male average age 85.7). Female residents (73.6%) outnumber male residents by almost 3 to 1.
Slightly over 5% of people 65 years and older occupy nursing homes, congregate care, assisted living, and board-and-care homes. At any given time, approximately 4% of the population are in nursing homes with the rate of nursing home use increasing with age from 1.4% of the young-old to 24.5% of the oldest-old. Nearly 50% of those 95 years old and older live in nursing homes.